字符串反轉(C語言中字符串反轉怎么實現)

代碼實現

#include<stdio.h>#include<string.h>#defineMAX_LENGTH50//最大長度char*String_Invertion(char*str);intmain(){charstring[MAX_LENGTH];printf("請輸入一個字符串\n");scanf("%s",string);String_Invertion(string);printf("反轉后的字符串為%s\n",string);return0;}/***@brief字符串反轉函數*@paramstr目標字符串*@return反轉后的字符串(str)*/char*String_Invertion(char*str){if(str==NULL)returnNULL;intlen=strlen(str);inti=0;for(i=0;i<len/2;i++)//替換len/2次{/*(按位)異或交換法,其他交換法參考day27*/str[i]=str[i]^str[len-1-i];str[len-1-i]=str[i]^str[len-1-i];str[i]=str[i]^str[len-1-i];}returnstr;}

運行結果

網上參考

//Createdbywww.runoob.comon15/11/9.//Copyright&copy;2015年菜鳥教程.Allrightsreserved.//#include<stdio.h>voidreverse(char*s){//獲取字符串長度intlen=0;char*p=s;while(*p!=0){len++;p++;}//交換...inti=0;charc;while(i<=len/2-1){c=*(s+i);*(s+i)=*(s+len-1-i);*(s+len-1-i)=c;i++;}}intmain(){chars[]="www.runoob.com";printf("'%s'=>\n",s);reverse(s);//反轉字符串printf("'%s'\n",s);return0;}